Mac Mini Power Problems

Ok. I have a mac mini 2009 and it was doing fine up until a week ago. Now it will randomly shut it self off. I have tried reseting my sms. I have also done a complete wipe and reinstalled the OS and I get the same problem. I got it checked at the local Apple store, they found nothing wrong. I brought it back home and plugged it up and it works for about 10 minutes before shutting off. I took the computer out of the bedroom where i have it always plugged in and moved it to another part of the house and now it works like new. My question is can my mac have caused a shortage in my wall socket or is there not enough power coming in. Any Ideas... Please cause i would love to move it back into my bedroom.

I seriously doubt your mini caused a fault in your electrical system. Its more likely, especially based on your testing, that the circuit is the issue. Did you check to see if some of your power sockets are run through one of the light switches in the room? Did you or someone else recently move where the mini was plugged in to another socket in the room?

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